2 * SPDX-License-Identifier: BSD-2-Clause-FreeBSD
4 * Copyright 2005, Gleb Smirnoff <glebius@FreeBSD.org>
7 * Redistribution and use in source and binary forms, with or without
8 * modification, are permitted provided that the following conditions
10 * 1. Redistributions of source code must retain the above copyright
11 * notice, this list of conditions and the following disclaimer.
12 * 2. Redistributions in binary form must reproduce the above copyright
13 * notice, this list of conditions and the following disclaimer in the
14 * documentation and/or other materials provided with the distribution.
16 * THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS ``AS IS'' AND
17 * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
18 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
19 * ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE
20 * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
21 * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
22 * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
23 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
24 * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
25 * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
31 #define NG_NAT_NODE_TYPE "nat"
32 #define NGM_NAT_COOKIE 1107718711
34 #define NG_NAT_HOOK_IN "in"
35 #define NG_NAT_HOOK_OUT "out"
37 /* Arguments for NGM_NAT_SET_MODE message */
43 /* Keep this in sync with the above structure definition */
44 #define NG_NAT_MODE_INFO { \
45 { "flags", &ng_parse_uint32_type }, \
46 { "mask", &ng_parse_uint32_type }, \
50 #define NG_NAT_LOG 0x01
51 #define NG_NAT_DENY_INCOMING 0x02
52 #define NG_NAT_SAME_PORTS 0x04
53 #define NG_NAT_UNREGISTERED_ONLY 0x10
54 #define NG_NAT_RESET_ON_ADDR_CHANGE 0x20
55 #define NG_NAT_PROXY_ONLY 0x40
56 #define NG_NAT_REVERSE 0x80
57 #define NG_NAT_UNREGISTERED_CGN 0x100
59 #define NG_NAT_DESC_LENGTH 64
60 #define NG_NAT_REDIRPROTO_ADDR (IPPROTO_MAX + 3) /* LibAlias' LINK_ADDR, also unused in in.h */
62 /* Arguments for NGM_NAT_REDIRECT_PORT message */
63 struct ng_nat_redirect_port {
64 struct in_addr local_addr;
65 struct in_addr alias_addr;
66 struct in_addr remote_addr;
71 char description[NG_NAT_DESC_LENGTH];
74 /* Keep this in sync with the above structure definition */
75 #define NG_NAT_REDIRECT_PORT_TYPE_INFO(desctype) { \
76 { "local_addr", &ng_parse_ipaddr_type }, \
77 { "alias_addr", &ng_parse_ipaddr_type }, \
78 { "remote_addr", &ng_parse_ipaddr_type }, \
79 { "local_port", &ng_parse_uint16_type }, \
80 { "alias_port", &ng_parse_uint16_type }, \
81 { "remote_port", &ng_parse_uint16_type }, \
82 { "proto", &ng_parse_uint8_type }, \
83 { "description", (desctype) }, \
87 /* Arguments for NGM_NAT_REDIRECT_ADDR message */
88 struct ng_nat_redirect_addr {
89 struct in_addr local_addr;
90 struct in_addr alias_addr;
91 char description[NG_NAT_DESC_LENGTH];
94 /* Keep this in sync with the above structure definition */
95 #define NG_NAT_REDIRECT_ADDR_TYPE_INFO(desctype) { \
96 { "local_addr", &ng_parse_ipaddr_type }, \
97 { "alias_addr", &ng_parse_ipaddr_type }, \
98 { "description", (desctype) }, \
102 /* Arguments for NGM_NAT_REDIRECT_PROTO message */
103 struct ng_nat_redirect_proto {
104 struct in_addr local_addr;
105 struct in_addr alias_addr;
106 struct in_addr remote_addr;
108 char description[NG_NAT_DESC_LENGTH];
111 /* Keep this in sync with the above structure definition */
112 #define NG_NAT_REDIRECT_PROTO_TYPE_INFO(desctype) { \
113 { "local_addr", &ng_parse_ipaddr_type }, \
114 { "alias_addr", &ng_parse_ipaddr_type }, \
115 { "remote_addr", &ng_parse_ipaddr_type }, \
116 { "proto", &ng_parse_uint8_type }, \
117 { "description", (desctype) }, \
121 /* Arguments for NGM_NAT_ADD_SERVER message */
122 struct ng_nat_add_server {
128 /* Keep this in sync with the above structure definition */
129 #define NG_NAT_ADD_SERVER_TYPE_INFO { \
130 { "id", &ng_parse_uint32_type }, \
131 { "addr", &ng_parse_ipaddr_type }, \
132 { "port", &ng_parse_uint16_type }, \
136 /* List entry of array returned in NGM_NAT_LIST_REDIRECTS message */
137 struct ng_nat_listrdrs_entry {
138 uint32_t id; /* Anything except zero */
139 struct in_addr local_addr;
140 struct in_addr alias_addr;
141 struct in_addr remote_addr;
144 uint16_t remote_port;
145 uint16_t proto; /* Valid proto or NG_NAT_REDIRPROTO_ADDR */
146 uint16_t lsnat; /* LSNAT servers count */
147 char description[NG_NAT_DESC_LENGTH];
150 /* Keep this in sync with the above structure definition */
151 #define NG_NAT_LISTRDRS_ENTRY_TYPE_INFO(desctype) { \
152 { "id", &ng_parse_uint32_type }, \
153 { "local_addr", &ng_parse_ipaddr_type }, \
154 { "alias_addr", &ng_parse_ipaddr_type }, \
155 { "remote_addr", &ng_parse_ipaddr_type }, \
156 { "local_port", &ng_parse_uint16_type }, \
157 { "alias_port", &ng_parse_uint16_type }, \
158 { "remote_port", &ng_parse_uint16_type }, \
159 { "proto", &ng_parse_uint16_type }, \
160 { "lsnat", &ng_parse_uint16_type }, \
161 { "description", (desctype) }, \
165 /* Structure returned by NGM_NAT_LIST_REDIRECTS */
166 struct ng_nat_list_redirects {
167 uint32_t total_count;
168 struct ng_nat_listrdrs_entry redirects[];
171 /* Keep this in sync with the above structure definition */
172 #define NG_NAT_LIST_REDIRECTS_TYPE_INFO(redirtype) { \
173 { "total_count", &ng_parse_uint32_type }, \
174 { "redirects", (redirtype) }, \
178 /* Structure returned by NGM_NAT_LIBALIAS_INFO */
179 struct ng_nat_libalias_info {
180 uint32_t icmpLinkCount;
181 uint32_t udpLinkCount;
182 uint32_t tcpLinkCount;
183 uint32_t sctpLinkCount;
184 uint32_t pptpLinkCount;
185 uint32_t protoLinkCount;
186 uint32_t fragmentIdLinkCount;
187 uint32_t fragmentPtrLinkCount;
191 /* Keep this in sync with the above structure definition */
192 #define NG_NAT_LIBALIAS_INFO { \
193 { "icmpLinkCount", &ng_parse_uint32_type }, \
194 { "udpLinkCount", &ng_parse_uint32_type }, \
195 { "tcpLinkCount", &ng_parse_uint32_type }, \
196 { "sctpLinkCount", &ng_parse_uint32_type }, \
197 { "pptpLinkCount", &ng_parse_uint32_type }, \
198 { "protoLinkCount", &ng_parse_uint32_type }, \
199 { "fragmentIdLinkCount", &ng_parse_uint32_type }, \
200 { "fragmentPtrLinkCount", &ng_parse_uint32_type }, \
201 { "sockCount", &ng_parse_uint32_type }, \
206 NGM_NAT_SET_IPADDR = 1,
209 NGM_NAT_REDIRECT_PORT,
210 NGM_NAT_REDIRECT_ADDR,
211 NGM_NAT_REDIRECT_PROTO,
212 NGM_NAT_REDIRECT_DYNAMIC,
213 NGM_NAT_REDIRECT_DELETE,
215 NGM_NAT_LIST_REDIRECTS,
217 NGM_NAT_LIBALIAS_INFO,